1 /*
2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #import <JavaNativeFoundation/JavaNativeFoundation.h>
27 #import "java_awt_geom_PathIterator.h"
28 #import "sun_awt_SunHints.h"
29 #import "sun_font_CStrike.h"
30 #import "sun_font_CStrikeDisposer.h"
31 #import "CGGlyphImages.h"
32 #import "CGGlyphOutlines.h"
33 #import "AWTStrike.h"
34 #import "CoreTextSupport.h"
35 //#import "jni_util.h"
36 #include "fontscalerdefs.h"
37
38 /* Use THIS_FILE when it is available. */
39 #ifndef THIS_FILE
40 #define THIS_FILE __FILE__
41 #endif
42
43 @implementation AWTStrike
44
45 static CGAffineTransform sInverseTX = { 1, 0, 0, -1, 0, 0 };
46
47 - (id) initWithFont:(AWTFont *)awtFont
48 tx:(CGAffineTransform)tx
49 invDevTx:(CGAffineTransform)invDevTx
50 style:(JRSFontRenderingStyle)style
51 aaStyle:(jint)aaStyle {
52
53 self = [super init];
54 if (self) {
55 fAWTFont = [awtFont retain];
56 fStyle = style;
57 fAAStyle = aaStyle;
58
59 fTx = tx; // composited glyph and device transform
60
61 fAltTx = tx;
62 fAltTx.b *= -1;
63 fAltTx.d *= -1;
64
65 invDevTx.b *= -1;
66 invDevTx.c *= -1;
67 fFontTx = CGAffineTransformConcat(CGAffineTransformConcat(tx, invDevTx), sInverseTX);
68 fDevTx = CGAffineTransformInvert(invDevTx);
69
70 // the "font size" is the square root of the determinant of the matrix
71 fSize = sqrt(abs(fFontTx.a * fFontTx.d - fFontTx.b * fFontTx.c));
72 }
73 return self;
74 }
75
76 - (void) dealloc {
77 [fAWTFont release];
78 fAWTFont = nil;
79
80 [super dealloc];
81 }
82
83 + (AWTStrike *) awtStrikeForFont:(AWTFont *)awtFont
84 tx:(CGAffineTransform)tx
85 invDevTx:(CGAffineTransform)invDevTx
86 style:(JRSFontRenderingStyle)style
87 aaStyle:(jint)aaStyle {
88
89 return [[[AWTStrike alloc] initWithFont:awtFont
90 tx:tx invDevTx:invDevTx
91 style:style
92 aaStyle:aaStyle] autorelease];
93 }
94
95 @end
96
97
98 #define AWT_FONT_CLEANUP_SETUP \
99 BOOL _fontThrowJavaException = NO;
100
101 #define AWT_FONT_CLEANUP_CHECK(a) \
102 if ((a) == NULL) { \
103 _fontThrowJavaException = YES; \
104 goto cleanup; \
105 } \
106 if ((*env)->ExceptionCheck(env) == JNI_TRUE) { \
107 goto cleanup; \
108 }
109
110 #define AWT_FONT_CLEANUP_FINISH \
111 if (_fontThrowJavaException == YES) { \
112 char s[512]; \
113 sprintf(s, "%s-%s:%d", THIS_FILE, __FUNCTION__, __LINE__); \
114 [JNFException raise:env as:kRuntimeException reason:s]; \
115 }
116
117
118 /*
119 * Creates an affine transform from the corresponding doubles sent
120 * from CStrike.getGlyphTx().
121 */
122 static inline CGAffineTransform
123 GetTxFromDoubles(JNIEnv *env, jdoubleArray txArray)
124 {
125 if (txArray == NULL) {
126 return CGAffineTransformIdentity;
127 }
128
129 jdouble *txPtr = (*env)->GetPrimitiveArrayCritical(env, txArray, NULL);
130
131 CGAffineTransform tx =
132 CGAffineTransformMake(txPtr[0], txPtr[1], txPtr[2],
133 txPtr[3], txPtr[4], txPtr[5]);
134 tx = CGAffineTransformConcat(sInverseTX, tx);
135
136 (*env)->ReleasePrimitiveArrayCritical(env, txArray, txPtr, JNI_ABORT);
137
138 return tx;
139 }
140
141 /*
142 * Class: sun_font_CStrike
143 * Method: getNativeGlyphAdvance
144 * Signature: (JI)F
145 */
146 JNIEXPORT jfloat JNICALL
147 Java_sun_font_CStrike_getNativeGlyphAdvance
148 (JNIEnv *env, jclass clazz, jlong awtStrikePtr, jint glyphCode)
149 {
150 CGSize advance;
151 JNF_COCOA_ENTER(env);
152 AWTStrike *awtStrike = (AWTStrike *)jlong_to_ptr(awtStrikePtr);
153 AWTFont *awtFont = awtStrike->fAWTFont;
154
155 // negative glyph codes are really unicodes, which were placed there by the mapper
156 // to indicate we should use CoreText to substitute the character
157 CGGlyph glyph;
158 const CTFontRef fallback = CTS_CopyCTFallbackFontAndGlyphForJavaGlyphCode(awtFont, glyphCode, &glyph);
159 CTFontGetAdvancesForGlyphs(fallback, kCTFontDefaultOrientation, &glyph, &advance, 1);
160 CFRelease(fallback);
161 advance = CGSizeApplyAffineTransform(advance, awtStrike->fFontTx);
162 if (!JRSFontStyleUsesFractionalMetrics(awtStrike->fStyle)) {
163 advance.width = round(advance.width);
164 }
165
166 JNF_COCOA_EXIT(env);
167 return advance.width;
168 }
169
170 /*
171 * Class: sun_font_CStrike
172 * Method: getNativeGlyphImageBounds
173 * Signature: (JJILjava/awt/geom/Rectangle2D/Float;DD)V
174 */
175 JNIEXPORT void JNICALL
176 Java_sun_font_CStrike_getNativeGlyphImageBounds
177 (JNIEnv *env, jclass clazz,
178 jlong awtStrikePtr, jint glyphCode,
179 jobject result /*Rectangle*/, jdouble x, jdouble y)
180 {
181 JNF_COCOA_ENTER(env);
182
183 AWTStrike *awtStrike = (AWTStrike *)jlong_to_ptr(awtStrikePtr);
184 AWTFont *awtFont = awtStrike->fAWTFont;
185
186 CGAffineTransform tx = awtStrike->fAltTx;
187 tx.tx += x;
188 tx.ty += y;
189
190 // negative glyph codes are really unicodes, which were placed there by the mapper
191 // to indicate we should use CoreText to substitute the character
192 CGGlyph glyph;
193 const CTFontRef fallback = CTS_CopyCTFallbackFontAndGlyphForJavaGlyphCode(awtFont, glyphCode, &glyph);
194
195 CGRect bbox;
196 JRSFontGetBoundingBoxesForGlyphsAndStyle(fallback, &tx, awtStrike->fStyle, &glyph, 1, &bbox);
197 CFRelease(fallback);
198
199 // the origin of this bounding box is relative to the bottom-left corner baseline
200 CGFloat decender = -bbox.origin.y;
201 bbox.origin.y = -bbox.size.height + decender;
202
203 // Rectangle2D.Float.setRect(float x, float y, float width, float height);
204 static JNF_CLASS_CACHE(sjc_Rectangle2D_Float, "java/awt/geom/Rectangle2D$Float"); // cache class id for Rectangle
205 static JNF_MEMBER_CACHE(sjr_Rectangle2DFloat_setRect, sjc_Rectangle2D_Float, "setRect", "(FFFF)V");
206 JNFCallVoidMethod(env, result, sjr_Rectangle2DFloat_setRect, (jfloat)bbox.origin.x, (jfloat)bbox.origin.y, (jfloat)bbox.size.width, (jfloat)bbox.size.height);
207
208 JNF_COCOA_EXIT(env);
209 }
210
211 /*
212 * Class: sun_font_CStrike
213 * Method: getNativeGlyphOutline
214 * Signature: (JJIDD)Ljava/awt/geom/GeneralPath;
215 */
216 JNIEXPORT jobject JNICALL
217 Java_sun_font_CStrike_getNativeGlyphOutline
218 (JNIEnv *env, jclass clazz,
219 jlong awtStrikePtr, jint glyphCode, jdouble xPos, jdouble yPos)
220 {
221 jobject generalPath = NULL;
222
223 JNF_COCOA_ENTER(env);
224
225 AWTPathRef path = NULL;
226 jfloatArray pointCoords = NULL;
227 jbyteArray pointTypes = NULL;
228
229 AWT_FONT_CLEANUP_SETUP;
230
231 AWTStrike *awtStrike = (AWTStrike *)jlong_to_ptr(awtStrikePtr);
232 AWTFont *awtfont = awtStrike->fAWTFont;
233
234 AWT_FONT_CLEANUP_CHECK(awtfont);
235
236 // inverting the shear order and sign to compensate for the flipped coordinate system
237 CGAffineTransform tx = awtStrike->fTx;
238 tx.tx += xPos;
239 tx.ty += yPos;
240
241 // get the right font and glyph for this "Java GlyphCode"
242
243 CGGlyph glyph;
244 const CTFontRef font = CTS_CopyCTFallbackFontAndGlyphForJavaGlyphCode(awtfont, glyphCode, &glyph);
245
246 // get the advance of this glyph
247 CGSize advance;
248 CTFontGetAdvancesForGlyphs(font, kCTFontDefaultOrientation, &glyph, &advance, 1);
249
250 // Create AWTPath
251 path = AWTPathCreate(CGSizeMake(xPos, yPos));
252 AWT_FONT_CLEANUP_CHECK(path);
253
254 // Get the paths
255 tx = awtStrike->fTx;
256 tx = CGAffineTransformConcat(tx, sInverseTX);
257 AWTGetGlyphOutline(&glyph, (NSFont *)font, &advance, &tx, 0, 1, &path);
258 CFRelease(font);
259
260 pointCoords = (*env)->NewFloatArray(env, path->fNumberOfDataElements);
261 AWT_FONT_CLEANUP_CHECK(pointCoords);
262
263 (*env)->SetFloatArrayRegion(env, pointCoords, 0, path->fNumberOfDataElements, (jfloat*)path->fSegmentData);
264
265 // Copy the pointTypes to the general path
266 pointTypes = (*env)->NewByteArray(env, path->fNumberOfSegments);
267 AWT_FONT_CLEANUP_CHECK(pointTypes);
268
269 (*env)->SetByteArrayRegion(env, pointTypes, 0, path->fNumberOfSegments, (jbyte*)path->fSegmentType);
270
271 static JNF_CLASS_CACHE(jc_GeneralPath, "java/awt/geom/GeneralPath");
272 static JNF_CTOR_CACHE(jc_GeneralPath_ctor, jc_GeneralPath, "(I[BI[FI)V");
273 generalPath = JNFNewObject(env, jc_GeneralPath_ctor, java_awt_geom_PathIterator_WIND_NON_ZERO, pointTypes, path->fNumberOfSegments, pointCoords, path->fNumberOfDataElements); // AWT_THREADING Safe (known object)
274
275 // Cleanup
276 cleanup:
277 if (path != NULL) {
278 AWTPathFree(path);
279 path = NULL;
280 }
281
282 if (pointCoords != NULL) {
283 (*env)->DeleteLocalRef(env, pointCoords);
284 pointCoords = NULL;
285 }
286
287 if (pointTypes != NULL) {
288 (*env)->DeleteLocalRef(env, pointTypes);
289 pointTypes = NULL;
290 }
291
292 AWT_FONT_CLEANUP_FINISH;
293 JNF_COCOA_EXIT(env);
294 return generalPath;
295 }
296
297 /*
298 * Class: sun_font_CStrike
299 * Method: getGlyphImagePtrsNative
300 * Signature: (JJ[J[II)V
301 */
302 JNIEXPORT void JNICALL
303 Java_sun_font_CStrike_getGlyphImagePtrsNative
304 (JNIEnv *env, jclass clazz,
305 jlong awtStrikePtr, jlongArray glyphInfoLongArray,
306 jintArray glyphCodes, jint len)
307 {
308 JNF_COCOA_ENTER(env);
309
310 AWTStrike *awtStrike = (AWTStrike *)jlong_to_ptr(awtStrikePtr);
311
312 jlong *glyphInfos =
313 (*env)->GetPrimitiveArrayCritical(env, glyphInfoLongArray, NULL);
314 jint *rawGlyphCodes =
315 (*env)->GetPrimitiveArrayCritical(env, glyphCodes, NULL);
316
317 CGGlyphImages_GetGlyphImagePtrs(glyphInfos, awtStrike,
318 rawGlyphCodes, len);
319
320 (*env)->ReleasePrimitiveArrayCritical(env, glyphCodes,
321 rawGlyphCodes, JNI_ABORT);
322 // Do not use JNI_COMMIT, as that will not free the buffer copy
323 // when +ProtectJavaHeap is on.
324 (*env)->ReleasePrimitiveArrayCritical(env, glyphInfoLongArray,
325 glyphInfos, 0);
326
327 JNF_COCOA_EXIT(env);
328 }
329
330 /*
331 * Class: sun_font_CStrike
332 * Method: createNativeStrikePtr
333 * Signature: (J[D[DII)J
334 */
335 JNIEXPORT jlong JNICALL Java_sun_font_CStrike_createNativeStrikePtr
336 (JNIEnv *env, jclass clazz, jlong nativeFontPtr, jdoubleArray glyphTxArray, jdoubleArray invDevTxArray, jint aaStyle, jint fmHint)
337 {
338 AWTStrike *awtStrike = nil;
339 JNF_COCOA_ENTER(env);
340
341 AWTFont *awtFont = (AWTFont *)jlong_to_ptr(nativeFontPtr);
342 JRSFontRenderingStyle style = JRSFontGetRenderingStyleForHints(fmHint, aaStyle);
343
344 CGAffineTransform glyphTx = GetTxFromDoubles(env, glyphTxArray);
345 CGAffineTransform invDevTx = GetTxFromDoubles(env, invDevTxArray);
346
347 awtStrike = [AWTStrike awtStrikeForFont:awtFont tx:glyphTx invDevTx:invDevTx style:style aaStyle:aaStyle]; // autoreleased
348
349 if (awtStrike)
350 {
351 CFRetain(awtStrike); // GC
352 }
353
354 JNF_COCOA_EXIT(env);
355 return ptr_to_jlong(awtStrike);
356 }
357
358 /*
359 * Class: sun_font_CStrike
360 * Method: disposeNativeStrikePtr
361 * Signature: (J)V
362 */
363 JNIEXPORT void JNICALL
364 Java_sun_font_CStrike_disposeNativeStrikePtr
365 (JNIEnv *env, jclass clazz, jlong awtStrike)
366 {
367 JNF_COCOA_ENTER(env);
368
369 if (awtStrike) {
370 CFRelease((AWTStrike *)jlong_to_ptr(awtStrike)); // GC
371 }
372
373 JNF_COCOA_EXIT(env);
374 }
375
376 /*
377 * Class: sun_font_CStrike
378 * Method: getFontMetrics
379 * Signature: (J)Lsun/font/StrikeMetrics;
380 */
381 JNIEXPORT jobject JNICALL
382 Java_sun_font_CStrike_getFontMetrics
383 (JNIEnv *env, jclass clazz, jlong awtStrikePtr)
384 {
385 jobject metrics = NULL;
386
387 JNF_COCOA_ENTER(env);
388 AWT_FONT_CLEANUP_SETUP;
389
390 AWTFont *awtfont = ((AWTStrike *)jlong_to_ptr(awtStrikePtr))->fAWTFont;
391 AWT_FONT_CLEANUP_CHECK(awtfont);
392
393 CGFontRef cgFont = awtfont->fNativeCGFont;
394
395 jfloat ay=0.0, dy=0.0, mx=0.0, ly=0.0;
396 int unitsPerEm = CGFontGetUnitsPerEm(cgFont);
397 CGFloat scaleX = (1.0 / unitsPerEm);
398 CGFloat scaleY = (1.0 / unitsPerEm);
399
400 // Ascent
401 ay = -(CGFloat)CGFontGetAscent(cgFont) * scaleY;
402
403 // Descent
404 dy = -(CGFloat)CGFontGetDescent(cgFont) * scaleY;
405
406 // Leading
407 ly = (CGFloat)CGFontGetLeading(cgFont) * scaleY;
408
409 // Max Advance for Font Direction (Strictly horizontal)
410 mx = [awtfont->fFont maximumAdvancement].width;
411
412 /*
413 * ascent: no need to set ascentX - it will be zero.
414 * descent: no need to set descentX - it will be zero.
415 * baseline: old releases "made up" a number and also seemed to
416 * make it up for "X" and set "Y" to 0.
417 * leadingX: no need to set leadingX - it will be zero.
418 * leadingY: made-up number, but being compatible with what 1.4.x did.
419 * advance: no need to set yMaxLinearAdvanceWidth - it will be zero.
420 */
421
422 JNF_CLASS_CACHE(sjc_StrikeMetrics, "sun/font/StrikeMetrics");
423 JNF_CTOR_CACHE(strikeMetricsCtr, sjc_StrikeMetrics, "(FFFFFFFFFF)V");
424 metrics = JNFNewObject(env, strikeMetricsCtr,
425 0.0, ay, 0.0, dy, 1.0,
426 0.0, 0.0, ly, mx, 0.0);
427
428 cleanup:
429 AWT_FONT_CLEANUP_FINISH;
430 JNF_COCOA_EXIT(env);
431
432 return metrics;
433 }
434
435 extern void AccelGlyphCache_RemoveAllInfos(GlyphInfo* glyph);
436 /*
437 * Class: sun_font_CStrikeDisposer
438 * Method: removeGlyphInfoFromCache
439 * Signature: (J)V
440 */
441 JNIEXPORT void JNICALL Java_sun_font_CStrikeDisposer_removeGlyphInfoFromCache
442 (JNIEnv *env, jclass cls, jlong glyphInfo)
443 {
444 JNF_COCOA_ENTER(env);
445
446 AccelGlyphCache_RemoveAllCellInfos((GlyphInfo*)jlong_to_ptr(glyphInfo));
447
448 JNF_COCOA_EXIT(env);
449 }